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任睿祺 ，张旭辉 ，李振杰 ，陈世盛 ，王建磐 

（ 山西冶金岩土工程勘察有限公司 ，山西 太原 030002)

摘   要： 通过勘察一区域综合办公写字楼主楼获取土层详细指标 ，利用土钉抗力参数计算选取最佳土钉墙  材料 ，并设计深基坑复合土钉墙支护方案与施工流程 。将设计好的施工方案输入到 FLAC3D 软件中模拟深基坑  支护结构 ，模拟不同地质影响下的侧压力系数 。经试验验证： 当土钉参数为 5 排 、钢管嵌固深度参数为 2 m 时， 支护结构可以最大程度降低深基坑的水平位移与沉降； 在侧压力系数较大情况下 ，可以保持较低的竖直位移与  深基坑坑底隆起值 ，具有较好的支护效果。

关键词： 地质影响； 深基坑； 复合土钉墙； 支护参数； 水平位移； 侧压力系数

中图分类号： TU753. 62      

文献标志码： A      

文章编号： 1005-8249 (2024) 01-0082-06

DOI : 10. 19860/j.cnki.issn1005-8249.2024.01.015

 

 

REN Ruiqi , ZHANG Xuhui , LI Zhenjie , CHEN Shisheng , WANG Jianpan

( Shanxi Metallurgical Geotechnical Engineering Investigation Co. ，Ltd , Taiyuan 030002 China)

Abstract: By surveying the main building of a comprehensive office building in a certain area to obtain detailed soil layer indicators, using soil nail resistance parameters to calculate and select the optimal soil nail wall material, and designing a deep foundation pit composite soil nail wall support scheme and construction process. Input the designed construction plan into FLAC3D software to simulate the deep foundation pit support structure and the lateral pressure coefficient under different geological influences. Experimental verification: When the soil nail parameters are 5 rows and the steel pipe embedding depth parameter is 2 meters, the support structure can minimize the horizontal displacement and settlement of the deep foundation pit to the greatest extent; When the lateral pressure coefficient is large, it can maintain a lower vertical displacement and deep foundation pit bottom uplift value, which has a good support effect.

Keywords: geological influence; deep foundation pit; composite soil nailing wall; supporting parameters; horizontal displacement; 

∗基金项目： 山西省煤基重点科技攻关项目  ( MJ2021-08) 。

作者简介： 任睿祺  (1991 —) , 男 ，本科 ，工程师 ，主要研究方向： 岩土工程勘察及应用技术。 通信作者： 李振杰  (1988—) , 男 ，本科 ，工程师 ，主要研究方向： 地基处理 、建筑工程检测。 

收稿日期： 2023-03-27